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Title: SIMULATION OF URBAN HEATING SYSTEMS' RETROFITTING PROJECTS: FROM CONCEPT TO INSTRUMENT
SIMULATION OF URBAN HEATING SYSTEMS' RETROFITTING PROJECTS: FROM CONCEPT TO INSTRUMENT

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Girts Karnitis; Stanislavs Gendelis; Maris Pukis; Ugis Sarma; Edgars Diebelis; Edvins Karnitis; Janis Bicevskis
10.5593/sgem2024/5.1/s21.76
10.5593/sgem2024/5.1
1314-2704
978-619-7603-72-9
English
24
5.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Environmental Economics
Updated normative documents within the Fit for 55 legislative package envisage increased dynamics in achieving European Green Deal goals, which are obligatory for EU countries. This directly applies to over 65 million energy-inefficient buildings in EU27 urban areas as well as heat supply systems. However, unified funding for long-term renovation programs is not planned. To respond quickly to diverse financing options with distinct conditions and target variables, a costly and time-consuming elaboration of detailed renovation projects becomes ineffective.
The article outlines the functional algorithm developed for the innovation sandbox, which is intended for the simulation of various renovation/modernization options in the overall urban heating system including heated buildings, district heating network and heat sources. The aim is crafting the application/project that meets the specific conditions to the maximum and provides high performance-price ratio. The algorithm is founded on the previously developed methodological concept.
Created sandbox’s algorithm:
• encompasses the analysis of all components of the overall heating system;
• is applicable to the requirements of relevant projects and available funding options;
• offers a flexible pre-design assessment of the benefits to be achieved by the project;
• capable to consolidate many individual projects;
• provides objective and sufficiently precise results for the initial simulation and evaluation of project variations;
• does not necessitate specific knowledge in building physics and economics;
• utilizes a limited set of input indicators.
Through the sandbox, both central and local governments, as well as building owners, can effectively adapt to evolving funding and/or project tender rules.
[1] European Council. Fit for 55 (2023). Available at: https://www.consilium.europa.eu/en/policies/green-deal/fit-for-55/
[2] European Council. Energy Performance of Buildings Directive (2023). Available at: https://energy.ec.europa.eu/topics/energy-efficiency/energy-efficient-buildings/energy-performance-buildings-directive_en
[3] European Council. Renewable Energy Directive (2023). Available at: https://energy.ec.europa.eu/topics/renewable-energy/renewable-energy-directive-targets-and-rules/renewable-energy-directive_en
[4] Huang, J., Wang, S., Teng, F., Feng, W. Thermal performance optimization of envelope in the energy-saving renovation of existing residential buildings. Energy and Buildings, vol. 247, 111103, 2021. doi.org/10.1016/j.enbuild.2021.111103
[5] Liu, T., Ma, G., Wang, D., Pan, X. Intelligent green retrofitting of existing buildings based on case-based reasoning and random forest. Automation in Construction, vol. 162, 105377, 2024. doi.org/10.1016/j.autcon.2024.105377
[6] Husiev, O., Campos-Celador, A., Alvarez-Sanz, M., Teres-Zubiaga, J. Why district renovation is not leading the race? Critical assessment of building renovation potential under different intervention levels. Energy and Buildings, 295, 113288, 2023. doi.org/10.1016/j.enbuild.2023.113288
[7] Wahi, P., Konstantinou, T., Tenpierik, M.J., Visscher, H.J. Lower-Temperature-Ready Renovation: An Approach to Identify the Extent of Renovation Interventions for Lower-Temperature District Heating in Existing Dutch Homes. Buildings, vol. 13(10), 2524, 2023. doi.org/10.3390/buildings13102524
[8] Zhang, N., Liu, G., Man, X., Wang, Q. Discussion on the characteristics and renovation technologies of the heating system in Chinese urban residential areas from perspectives of heat sources. Energy and Buildings, vol. 307, 113966, 2024. doi.org/10.1016/j.enbuild.2024.113966
[9] Gendelis, S., Bicevskis, J., Eihmanis, A., Karnitis, E., Karnitis, G., Pukis, M., Sarma, U. Methodology of sustainable management of the urban heating system in case of massive building renovation. In: Trofymchuk, O., Rivza, B. (eds.) Proceedings of 23rd International Multidisciplinary Scientific GeoConference SGEM 2023, vol. 23, issue 6.1, pp. 391-398. DOI 10.5593/sgem2023/6.1/s27.49
[10] Cabinet of Ministers Republic of Latvia. Regulations on the Latvian building code LBN 003-19 "Building climatology" (in Latvian). Regulation No. 432, adopted 17 September 2019.
Available at: https://likumi.lv/ta/id/309453-noteikumi-par-latvijas-buvnormativu-lbn-003-19-buvklimatologija
[11] Vandenbogaerde, L., Verbeke, S., Audenaert, A. Optimizing building energy consumption in office buildings: A review of building automation and control systems and factors influencing energy savings. Journal of Building Engineering, 76, 107233, 2023. doi.org/10.1016/j.jobe.2023.107233
[12] Telia. Real estate industry challenges and digital solutions, 2022. Available at: https://business.teliacompany.com/internet-of-things/smart-buildings/nordic-and-baltic-real-estate-industry-report
[13] Cabinet of Ministers Republic of Latvia. Regulations Regarding the Energy Efficiency Requirements for Centralized Heating Supply Systems in the Possession of a Licensed or Registered Energy Supply Merchant and the Procedures for Conformity Examination Thereof. Regulation No. 243, adopted 19 April 2016. Available at: https://faolex.fao.org/docs/pdf/lat172843.pdf
The study has been supported by the Latvian Council of Science project lzp-2021/1-0108 “Sustainable management of the urban heating system under EU Fit for 55 package: research and development of the methodology and tool“.
conference
https://doi.org/10.5593/sgem2024/5.1/s21.76
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
615-624
1 - 7 July, 2024
website
10024
fit for 55, urban heating system, energy efficiency, renovation, simulation.

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